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        <h3 id="Note："><a href="#Note：" class="headerlink" title="Note："></a>Note：</h3><p>这学期修了严厉的Mr.J的编译原理，不定期更新笔记！<br>欢迎指正！</p>
<h3 id="Github"><a href="#Github" class="headerlink" title="Github:"></a>Github:</h3><ul>
<li><a href="https://github.com/lijundong/lexi" target="_blank" rel="external">词法分析</a></li>
<li><a href="https://github.com/lijundong/syntax" target="_blank" rel="external">语法分析</a></li>
<li><a href="https://github.com/lijundong/semantic" target="_blank" rel="external">语义分析</a></li>
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<h3 id="文法改造"><a href="#文法改造" class="headerlink" title="文法改造"></a>文法改造</h3><h4 id="1-文法"><a href="#1-文法" class="headerlink" title="1.文法"></a>1.文法</h4><figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br></pre></td><td class="code"><pre><span class="line"></span><br><span class="line"><span class="number">1</span>) &lt;program&gt;→&#123;&lt;declaration_list&gt;&lt;statement_list&gt;&#125;</span><br><span class="line"></span><br><span class="line"><span class="number">2</span>) &lt;declaration_list&gt;→&lt;declaration_list&gt;&lt;declaration_stat&gt; | ε</span><br><span class="line"></span><br><span class="line"><span class="number">3</span>) &lt;declaration_stat&gt;→<span class="keyword">int</span> ID;</span><br><span class="line"></span><br><span class="line"><span class="number">4</span>) &lt;statement_list&gt;→&lt;statement_list&gt;&lt;statement&gt;| ε</span><br><span class="line"></span><br><span class="line"><span class="number">5</span>) &lt;statement&gt;→ &lt;if_stat&gt;|&lt;while_stat&gt;|&lt;for_stat&gt;|&lt;read_stat&gt;</span><br><span class="line">               |&lt;write_stat&gt;|&lt; compound_stat &gt; |&lt;expression_stat&gt;</span><br><span class="line">               </span><br><span class="line"><span class="number">6</span>) &lt;if_stat&gt;→ <span class="keyword">if</span> (&lt;expr&gt;) &lt;statement &gt;| <span class="keyword">if</span> (&lt;expr&gt;) &lt;statement &gt;<span class="keyword">else</span> &lt; statement &gt;</span><br><span class="line"></span><br><span class="line"><span class="number">7</span>) &lt;while_stat&gt;→ <span class="keyword">while</span> (&lt;expr &gt;) &lt; statement &gt;</span><br><span class="line"></span><br><span class="line"><span class="number">8</span>) &lt;for_stat&gt;→ <span class="keyword">for</span> (&lt;expr&gt;;&lt;expr&gt;;&lt;expr&gt;)&lt;statement&gt;</span><br><span class="line"></span><br><span class="line"><span class="number">9</span>) &lt;write_stat&gt;→write &lt;expression&gt;;</span><br><span class="line"></span><br><span class="line"><span class="number">10</span>) &lt;read_stat&gt;→read ID;</span><br><span class="line"></span><br><span class="line"><span class="number">11</span>)&lt;compound_stat&gt;→&#123;&lt;statement_list&gt;&#125;</span><br><span class="line"></span><br><span class="line"><span class="number">12</span>)&lt;expression_stat&gt;→&lt; expression &gt;;|;</span><br><span class="line"></span><br><span class="line"><span class="number">13</span>)&lt; expression &gt;→ ID=&lt;bool_expr&gt;|&lt;bool_expr&gt;</span><br><span class="line"></span><br><span class="line"><span class="number">14</span>)&lt;bool_expr&gt;→&lt;additive_expr&gt; |&lt; additive_expr &gt;(&gt;|&lt;|&gt;=|&lt;=|==|!=)&lt; additive_expr &gt; </span><br><span class="line"></span><br><span class="line"><span class="number">15</span>)&lt; additive_expr&gt;→&lt; additive_expr&gt;+&lt;term&gt;|&lt; additive_expr&gt;-&lt;term&gt;|&lt; term &gt; </span><br><span class="line"></span><br><span class="line"><span class="number">16</span>)&lt; term &gt;→&lt; term &gt;*&lt;factor&gt;|&lt; term &gt;/&lt;factor&gt;|&lt; factor &gt;</span><br><span class="line"></span><br><span class="line"><span class="number">17</span>)&lt; factor &gt;→(&lt; expression &gt;)|ID|NUM</span><br></pre></td></tr></table></figure>
<h4 id="2-消除左递归："><a href="#2-消除左递归：" class="headerlink" title="2.消除左递归："></a>2.消除左递归：</h4><figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br></pre></td><td class="code"><pre><span class="line">a.</span><br><span class="line">原型：<span class="tag">&lt;<span class="name">declaration_list</span>&gt;</span>→<span class="tag">&lt;<span class="name">declaration_list</span>&gt;</span><span class="tag">&lt;<span class="name">declaration_stat</span>&gt;</span> | ε</span><br><span class="line">改造：<span class="tag">&lt;<span class="name">declaration_list</span>&gt;</span> → A  ，A →<span class="tag">&lt;<span class="name">declaration_stat</span>&gt;</span>A|ε</span><br><span class="line"></span><br><span class="line">b.</span><br><span class="line">原形：<span class="tag">&lt;<span class="name">statement_list</span>&gt;</span>→<span class="tag">&lt;<span class="name">statement_list</span>&gt;</span><span class="tag">&lt;<span class="name">statement</span>&gt;</span>| ε</span><br><span class="line">改造：<span class="tag">&lt;<span class="name">statement_list</span>&gt;</span> → B  ， B →<span class="tag">&lt;<span class="name">statement</span>&gt;</span>B| ε</span><br><span class="line"></span><br><span class="line">c.</span><br><span class="line">原形：<span class="tag">&lt; <span class="attr">additive_expr</span>&gt;</span>→<span class="tag">&lt; <span class="attr">additive_expr</span>&gt;</span>+<span class="tag">&lt;<span class="name">term</span>&gt;</span>|<span class="tag">&lt; <span class="attr">additive_expr</span>&gt;</span>-<span class="tag">&lt;<span class="name">term</span>&gt;</span>|<span class="tag">&lt; <span class="attr">term</span> &gt;</span></span><br><span class="line">改造：<span class="tag">&lt; <span class="attr">additive_expr</span>&gt;</span> →<span class="tag">&lt; <span class="attr">term</span> &gt;</span>C  ， C →+<span class="tag">&lt;<span class="name">term</span>&gt;</span>C|-<span class="tag">&lt;<span class="name">term</span>&gt;</span>C|ε</span><br></pre></td></tr></table></figure>
<h4 id="3-提取公因式："><a href="#3-提取公因式：" class="headerlink" title="3.提取公因式："></a>3.提取公因式：</h4><figure class="highlight bnf"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre></td><td class="code"><pre><span class="line">a.</span><br><span class="line">原形：<span class="attribute">&lt;bool_expr&gt;</span> →<span class="attribute">&lt;additive_expr&gt;</span>|<span class="attribute">&lt; additive_expr &gt;</span>(&gt;|<span class="attribute">&lt;|&gt;</span>=|<span class="attribute">&lt;=|==|!=)&lt; additive_expr &gt;</span> </span><br><span class="line"></span><br><span class="line">改造：<span class="attribute">&lt;bool_expr&gt;</span> →<span class="attribute">&lt;additive_expr&gt;</span>E </span><br><span class="line">E→ε|(&gt;|<span class="attribute">&lt;|&gt;</span>=|<span class="attribute">&lt;=|==|!=)&lt; additive_expr &gt;</span> </span><br><span class="line">b. </span><br><span class="line">原形：<span class="attribute">&lt; term &gt;</span>→<span class="attribute">&lt; term &gt;</span>*<span class="attribute">&lt;factor&gt;</span>|<span class="attribute">&lt; term &gt;</span>/<span class="attribute">&lt;factor&gt;</span>|<span class="attribute">&lt; factor &gt;</span></span><br><span class="line">改造：<span class="attribute">&lt; term &gt;</span> →<span class="attribute">&lt; factor &gt;</span>D</span><br><span class="line">D →*<span class="attribute">&lt;factor&gt;</span>D|/<span class="attribute">&lt;factor&gt;</span>D|ε</span><br><span class="line"></span><br><span class="line">3. <span class="attribute">&lt;if_stat&gt;</span>→ if (<span class="attribute">&lt;expr&gt;</span>) <span class="attribute">&lt;statement &gt;</span>( ε|else <span class="attribute">&lt; statement&gt;</span>)</span><br><span class="line">不可提取公因式</span><br><span class="line"></span><br><span class="line"><span class="attribute">&lt; expression &gt;</span>→ ID=<span class="attribute">&lt;bool_expr&gt;</span>|<span class="attribute">&lt;bool_expr&gt;</span></span><br><span class="line">该文法解决方式:  程序设计时通过超前读一个符号来解决,如果识别出标识符的符号ID后，再读一个符号，如果这个符号是“=”，说明选择的是赋值表达式； 如果不是“=”，则说明选择的是布尔表达式</span><br></pre></td></tr></table></figure>
<h3 id="求First-amp-Follow集"><a href="#求First-amp-Follow集" class="headerlink" title="求First&amp;Follow集"></a>求First&amp;Follow集</h3><figure class="highlight pf"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br></pre></td><td class="code"><pre><span class="line"><span class="number">1</span>) <span class="variable">&lt;program&gt;</span> →&#123;<span class="variable">&lt;declaration_list&gt;</span><span class="variable">&lt;statement_list&gt;</span>&#125;</span><br><span class="line"></span><br><span class="line">First(&#123;<span class="variable">&lt;declaration_list&gt;</span><span class="variable">&lt;statement_list&gt;</span>&#125;)= &#123;  &#123;  &#125;</span><br><span class="line"></span><br><span class="line"><span class="number">2</span>) <span class="variable">&lt;declaration_list&gt;</span> → A , A →<span class="variable">&lt;declaration_stat&gt;</span>A|ε</span><br><span class="line"></span><br><span class="line">First(A)=First(<span class="variable">&lt;declaration_stat&gt;</span>A)=   &#123; int ，ε &#125;</span><br><span class="line">First(<span class="variable">&lt;declaration_stat&gt;</span>A)=First( int ID;)= &#123; int &#125;</span><br><span class="line">Follow(A) =&#123; if,while,<span class="keyword">for</span>,read,write,&#123;,&#125;,;,ID,(,NUM&#125;</span><br><span class="line"></span><br><span class="line"><span class="number">3</span>) <span class="variable">&lt;declaration_stat&gt;</span> →int ID;</span><br><span class="line"></span><br><span class="line">First(int ID;)=&#123;int&#125;</span><br><span class="line"></span><br><span class="line"><span class="number">4</span>)<span class="variable">&lt;statement_list&gt;</span> → B , B →<span class="variable">&lt;statement&gt;</span>B| ε</span><br><span class="line"></span><br><span class="line">First(<span class="variable">&lt;statement&gt;</span>B)=&#123; if,while,<span class="keyword">for</span>,read,write,&#123;,;,ID,NUM,( &#125;</span><br><span class="line">First(B) =&#123; if,while,<span class="keyword">for</span>,read,write,&#123;,;,ID, ε&#125;</span><br><span class="line">Follow(B) =&#123; &#125; &#125;</span><br><span class="line"></span><br><span class="line"><span class="number">5</span>)<span class="variable">&lt;statement&gt;</span> → <span class="variable">&lt;if_stat&gt;</span>|<span class="variable">&lt;while_stat&gt;</span>|<span class="variable">&lt;for_stat&gt;</span>|<span class="variable">&lt;read_stat&gt;</span>|</span><br><span class="line"><span class="variable">&lt;write_stat&gt;</span>|<span class="variable">&lt; compound_stat &gt;</span> |<span class="variable">&lt;expression_stat&gt;</span></span><br><span class="line"></span><br><span class="line">First(<span class="variable">&lt;if_stat&gt;</span>)=&#123;if&#125;</span><br><span class="line">First(<span class="variable">&lt;while_stat&gt;</span>)=&#123;while&#125;</span><br><span class="line">First(<span class="variable">&lt;for_stat&gt;</span>)=&#123;<span class="keyword">for</span>&#125;</span><br><span class="line">First(<span class="variable">&lt;read_stat&gt;</span>)=&#123;read&#125;</span><br><span class="line">First(<span class="variable">&lt;write_stat&gt;</span>)=&#123;write&#125;</span><br><span class="line">First(<span class="variable">&lt; compound_stat &gt;</span>)=&#123;&#123;&#125; </span><br><span class="line">First(<span class="variable">&lt;expression_stat&gt;</span>)=&#123; ;,ID,NUM,( &#125;</span><br><span class="line"></span><br><span class="line"><span class="number">6</span>) <span class="variable">&lt;if_stat&gt;</span> → if (<span class="variable">&lt;expr&gt;</span>) <span class="variable">&lt;statement &gt;</span>| if (<span class="variable">&lt;expr&gt;</span>) <span class="variable">&lt;statement &gt;</span>else <span class="variable">&lt; statement &gt;</span></span><br><span class="line"></span><br><span class="line">First(if (<span class="variable">&lt;expr&gt;</span>) <span class="variable">&lt;statement &gt;</span>)=&#123; if &#125;</span><br><span class="line">First(if (<span class="variable">&lt;expr&gt;</span>) <span class="variable">&lt;statement &gt;</span>else <span class="variable">&lt; statement &gt;</span>)=&#123; if &#125;</span><br><span class="line"></span><br><span class="line"><span class="number">7</span>) <span class="variable">&lt;while_stat&gt;</span> → while (<span class="variable">&lt;expr &gt;</span>) <span class="variable">&lt; statement &gt;</span></span><br><span class="line"></span><br><span class="line">First(while (<span class="variable">&lt;expr &gt;</span>) <span class="variable">&lt; statement &gt;</span>)=&#123; while &#125;</span><br><span class="line"></span><br><span class="line"><span class="number">8</span>) <span class="variable">&lt;for_stat&gt;</span> → <span class="keyword">for</span> (<span class="variable">&lt;expr&gt;</span>;<span class="variable">&lt;expr&gt;</span>;<span class="variable">&lt;expr&gt;</span>)<span class="variable">&lt;statement&gt;</span></span><br><span class="line"></span><br><span class="line">First(<span class="keyword">for</span> (<span class="variable">&lt;expr&gt;</span>;<span class="variable">&lt;expr&gt;</span>;<span class="variable">&lt;expr&gt;</span>)<span class="variable">&lt;statement&gt;</span>)=&#123; <span class="keyword">for</span> &#125;</span><br><span class="line"></span><br><span class="line"><span class="number">9</span>) <span class="variable">&lt;write_stat&gt;</span> →write <span class="variable">&lt;expression&gt;</span>;</span><br><span class="line"></span><br><span class="line">First(write <span class="variable">&lt;expression&gt;</span>;)=&#123; write &#125;</span><br><span class="line"></span><br><span class="line"><span class="number">10</span>) <span class="variable">&lt;read_stat&gt;</span> →read ID; </span><br><span class="line"></span><br><span class="line">First(read ID;)=&#123; read &#125;</span><br><span class="line"></span><br><span class="line"><span class="number">11</span>)<span class="variable">&lt;compound_stat&gt;</span> →&#123;<span class="variable">&lt;statement_list&gt;</span>&#125; </span><br><span class="line"></span><br><span class="line">First(&#123;<span class="variable">&lt;statement_list&gt;</span>&#125;)=&#123;&#123;&#125;</span><br><span class="line"></span><br><span class="line"><span class="number">12</span>)<span class="variable">&lt;expression_stat&gt;</span> →<span class="variable">&lt; expression &gt;</span>;|; </span><br><span class="line"></span><br><span class="line">First(<span class="variable">&lt; expression &gt;</span>;)= &#123;ID,NUM,(&#125;</span><br><span class="line">First(;)=&#123;;&#125;</span><br><span class="line"></span><br><span class="line"><span class="number">13</span>)<span class="variable">&lt; expression &gt;</span> → ID=<span class="variable">&lt;bool_expr&gt;</span>|<span class="variable">&lt;bool_expr&gt;</span> </span><br><span class="line"></span><br><span class="line">First(ID=<span class="variable">&lt;bool_expr&gt;</span>)=&#123;ID&#125;</span><br><span class="line">First(<span class="variable">&lt;bool_expr&gt;</span>)=&#123;ID,NUM,(&#125;</span><br><span class="line"></span><br><span class="line"><span class="number">14</span>) <span class="variable">&lt;bool_expr&gt;</span> →<span class="variable">&lt;additive_expr&gt;</span>E , E→ε|(&gt;|<span class="variable">&lt;|&gt;</span>=|<span class="variable">&lt;=|==|!=)&lt; additive_expr &gt;</span> </span><br><span class="line"></span><br><span class="line">First(<span class="variable">&lt;additive_expr&gt;</span>E)=&#123;ID,NUM,(&#125;</span><br><span class="line">First((&gt;|<span class="variable">&lt;|&gt;</span>=|<span class="variable">&lt;=|==|!=)&lt; additive_expr &gt;</span>)=&#123;&gt;,<span class="variable">&lt;,&gt;</span>=,<span class="variable">&lt;=,==,!=&#125;</span><br><span class="line">First(ε)=&#123; ε&#125; </span><br><span class="line">Follow(E)=&#123;;&#125;</span><br><span class="line"></span><br><span class="line">15)&lt; additive_expr&gt;</span> →<span class="variable">&lt; term &gt;</span>C , C →+<span class="variable">&lt;term&gt;</span>C|-<span class="variable">&lt;term&gt;</span>C|ε</span><br><span class="line"></span><br><span class="line">First(<span class="variable">&lt; term &gt;</span>C)=&#123;ID,NUM,(&#125;</span><br><span class="line">First(+<span class="variable">&lt;term&gt;</span>C)=&#123;+&#125;</span><br><span class="line">First(-<span class="variable">&lt;term&gt;</span>C)=&#123;-&#125;</span><br><span class="line">Follow(C)=&#123;;, ), (&gt;|<span class="variable">&lt;|&gt;</span>=|<span class="variable">&lt;=|==|!=)&#125;</span><br><span class="line"></span><br><span class="line">16)&lt; term &gt;</span> →<span class="variable">&lt; factor &gt;</span>D , D →*<span class="variable">&lt;factor&gt;</span>D|/<span class="variable">&lt;factor&gt;</span>D|ε</span><br><span class="line"></span><br><span class="line">First(<span class="variable">&lt; factor &gt;</span>D)=&#123;ID,NUM,(&#125;</span><br><span class="line">First(*<span class="variable">&lt;factor&gt;</span>D)=&#123;*&#125;</span><br><span class="line">First(/<span class="variable">&lt;factor&gt;</span>D)=&#123;/&#125;</span><br><span class="line">First(ε)=&#123;ε&#125;</span><br><span class="line">Follow(D)=&#123;+,-, <span class="variable">&lt;,&gt;</span>,&gt;=,<span class="variable">&lt;=,==,!=, ; , )&#125;</span><br><span class="line"></span><br><span class="line">17)&lt; factor &gt;</span> →(<span class="variable">&lt; expression &gt;</span>)|ID|NUM</span><br><span class="line"></span><br><span class="line">First((<span class="variable">&lt; expression &gt;</span>))=&#123; ( &#125;</span><br><span class="line">First(ID)=ID</span><br><span class="line">First(NUM)=NUM</span><br></pre></td></tr></table></figure>
<h3 id="代码实现"><a href="#代码实现" class="headerlink" title="代码实现"></a>代码实现</h3><h4 id="1-测试代码"><a href="#1-测试代码" class="headerlink" title="1.测试代码"></a>1.测试代码</h4><figure class="highlight c"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br></pre></td><td class="code"><pre><span class="line">&#123;</span><br><span class="line"><span class="keyword">int</span> a;</span><br><span class="line"><span class="keyword">int</span> i;</span><br><span class="line"><span class="keyword">int</span> bc;</span><br><span class="line"><span class="keyword">for</span> (i=<span class="number">1</span>; i &lt;= <span class="number">10</span>; i=i+<span class="number">1</span>)</span><br><span class="line">&#123;</span><br><span class="line">;</span><br><span class="line">a=a+i</span><br><span class="line">b=b*i;</span><br><span class="line">&#123;</span><br><span class="line">c=a+b;</span><br><span class="line">&#125;</span><br><span class="line">&#125;</span><br><span class="line"><span class="keyword">if</span> (a&gt;b) </span><br><span class="line">&#123;</span><br><span class="line">write a;</span><br><span class="line">&#125;</span><br><span class="line"><span class="keyword">else</span> </span><br><span class="line">&#123;</span><br><span class="line">write b;</span><br><span class="line">&#125;</span><br><span class="line">&#125;</span><br><span class="line">write c</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>
<h4 id="2-实现代码"><a href="#2-实现代码" class="headerlink" title="2.实现代码"></a>2.实现代码</h4><figure class="highlight c++"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br><span class="line">46</span><br><span class="line">47</span><br><span class="line">48</span><br><span class="line">49</span><br><span class="line">50</span><br><span class="line">51</span><br><span class="line">52</span><br><span class="line">53</span><br><span class="line">54</span><br><span class="line">55</span><br><span class="line">56</span><br><span class="line">57</span><br><span class="line">58</span><br><span class="line">59</span><br><span class="line">60</span><br><span class="line">61</span><br><span class="line">62</span><br><span class="line">63</span><br><span class="line">64</span><br><span class="line">65</span><br><span class="line">66</span><br><span class="line">67</span><br><span class="line">68</span><br><span class="line">69</span><br><span class="line">70</span><br><span class="line">71</span><br><span class="line">72</span><br><span class="line">73</span><br><span class="line">74</span><br><span class="line">75</span><br><span class="line">76</span><br><span class="line">77</span><br><span class="line">78</span><br><span class="line">79</span><br><span class="line">80</span><br><span class="line">81</span><br><span class="line">82</span><br><span class="line">83</span><br><span class="line">84</span><br><span class="line">85</span><br><span class="line">86</span><br><span class="line">87</span><br><span class="line">88</span><br><span class="line">89</span><br><span class="line">90</span><br><span class="line">91</span><br><span class="line">92</span><br><span class="line">93</span><br><span class="line">94</span><br><span class="line">95</span><br><span class="line">96</span><br><span class="line">97</span><br><span class="line">98</span><br><span class="line">99</span><br><span class="line">100</span><br><span class="line">101</span><br><span class="line">102</span><br><span class="line">103</span><br><span class="line">104</span><br><span class="line">105</span><br><span class="line">106</span><br><span class="line">107</span><br><span class="line">108</span><br><span class="line">109</span><br><span class="line">110</span><br><span class="line">111</span><br><span class="line">112</span><br><span class="line">113</span><br><span class="line">114</span><br><span class="line">115</span><br><span class="line">116</span><br><span class="line">117</span><br><span class="line">118</span><br><span class="line">119</span><br><span class="line">120</span><br><span class="line">121</span><br><span class="line">122</span><br><span class="line">123</span><br><span class="line">124</span><br><span class="line">125</span><br><span class="line">126</span><br><span class="line">127</span><br><span class="line">128</span><br><span class="line">129</span><br><span class="line">130</span><br><span class="line">131</span><br><span class="line">132</span><br><span class="line">133</span><br><span class="line">134</span><br><span class="line">135</span><br><span class="line">136</span><br><span class="line">137</span><br><span class="line">138</span><br><span class="line">139</span><br><span class="line">140</span><br><span class="line">141</span><br><span class="line">142</span><br><span class="line">143</span><br><span class="line">144</span><br><span class="line">145</span><br><span class="line">146</span><br><span class="line">147</span><br><span class="line">148</span><br><span class="line">149</span><br><span class="line">150</span><br><span class="line">151</span><br><span class="line">152</span><br><span class="line">153</span><br><span class="line">154</span><br><span class="line">155</span><br><span class="line">156</span><br><span class="line">157</span><br><span class="line">158</span><br><span class="line">159</span><br><span class="line">160</span><br><span class="line">161</span><br><span class="line">162</span><br><span class="line">163</span><br><span class="line">164</span><br><span class="line">165</span><br><span class="line">166</span><br><span class="line">167</span><br><span class="line">168</span><br><span class="line">169</span><br><span class="line">170</span><br><span class="line">171</span><br><span class="line">172</span><br><span class="line">173</span><br><span class="line">174</span><br><span class="line">175</span><br><span class="line">176</span><br><span class="line">177</span><br><span class="line">178</span><br><span class="line">179</span><br><span class="line">180</span><br><span class="line">181</span><br><span class="line">182</span><br><span class="line">183</span><br><span class="line">184</span><br><span class="line">185</span><br><span class="line">186</span><br><span class="line">187</span><br><span class="line">188</span><br><span class="line">189</span><br><span class="line">190</span><br><span class="line">191</span><br><span class="line">192</span><br><span class="line">193</span><br><span class="line">194</span><br><span class="line">195</span><br><span class="line">196</span><br><span class="line">197</span><br><span class="line">198</span><br><span class="line">199</span><br><span class="line">200</span><br><span class="line">201</span><br><span class="line">202</span><br><span class="line">203</span><br><span class="line">204</span><br><span class="line">205</span><br><span class="line">206</span><br><span class="line">207</span><br><span class="line">208</span><br><span class="line">209</span><br><span class="line">210</span><br><span class="line">211</span><br><span class="line">212</span><br><span class="line">213</span><br><span class="line">214</span><br><span class="line">215</span><br><span class="line">216</span><br><span class="line">217</span><br><span class="line">218</span><br><span class="line">219</span><br><span class="line">220</span><br><span class="line">221</span><br><span class="line">222</span><br><span class="line">223</span><br><span class="line">224</span><br><span class="line">225</span><br><span class="line">226</span><br><span class="line">227</span><br><span class="line">228</span><br><span class="line">229</span><br><span class="line">230</span><br><span class="line">231</span><br><span class="line">232</span><br><span class="line">233</span><br><span class="line">234</span><br><span class="line">235</span><br><span class="line">236</span><br><span class="line">237</span><br><span class="line">238</span><br><span class="line">239</span><br><span class="line">240</span><br><span class="line">241</span><br><span class="line">242</span><br><span class="line">243</span><br><span class="line">244</span><br><span class="line">245</span><br><span class="line">246</span><br><span class="line">247</span><br><span class="line">248</span><br><span class="line">249</span><br><span class="line">250</span><br><span class="line">251</span><br><span class="line">252</span><br><span class="line">253</span><br><span class="line">254</span><br><span class="line">255</span><br><span class="line">256</span><br><span class="line">257</span><br><span class="line">258</span><br><span class="line">259</span><br><span class="line">260</span><br><span class="line">261</span><br><span class="line">262</span><br><span class="line">263</span><br><span class="line">264</span><br><span class="line">265</span><br><span class="line">266</span><br><span class="line">267</span><br><span class="line">268</span><br><span class="line">269</span><br><span class="line">270</span><br><span class="line">271</span><br><span class="line">272</span><br><span class="line">273</span><br><span class="line">274</span><br><span class="line">275</span><br><span class="line">276</span><br><span class="line">277</span><br><span class="line">278</span><br><span class="line">279</span><br><span class="line">280</span><br><span class="line">281</span><br><span class="line">282</span><br><span class="line">283</span><br><span class="line">284</span><br><span class="line">285</span><br><span class="line">286</span><br><span class="line">287</span><br><span class="line">288</span><br><span class="line">289</span><br><span class="line">290</span><br><span class="line">291</span><br><span class="line">292</span><br><span class="line">293</span><br><span class="line">294</span><br><span class="line">295</span><br><span class="line">296</span><br><span class="line">297</span><br><span class="line">298</span><br><span class="line">299</span><br><span class="line">300</span><br><span class="line">301</span><br><span class="line">302</span><br><span class="line">303</span><br><span class="line">304</span><br><span class="line">305</span><br><span class="line">306</span><br><span class="line">307</span><br><span class="line">308</span><br><span class="line">309</span><br><span class="line">310</span><br><span class="line">311</span><br><span class="line">312</span><br><span class="line">313</span><br><span class="line">314</span><br><span class="line">315</span><br><span class="line">316</span><br><span class="line">317</span><br><span class="line">318</span><br><span class="line">319</span><br><span class="line">320</span><br><span class="line">321</span><br><span class="line">322</span><br><span class="line">323</span><br><span class="line">324</span><br><span class="line">325</span><br><span class="line">326</span><br><span class="line">327</span><br><span class="line">328</span><br><span class="line">329</span><br><span class="line">330</span><br><span class="line">331</span><br><span class="line">332</span><br><span class="line">333</span><br><span class="line">334</span><br><span class="line">335</span><br><span class="line">336</span><br><span class="line">337</span><br><span class="line">338</span><br><span class="line">339</span><br><span class="line">340</span><br><span class="line">341</span><br><span class="line">342</span><br><span class="line">343</span><br><span class="line">344</span><br><span class="line">345</span><br><span class="line">346</span><br><span class="line">347</span><br><span class="line">348</span><br><span class="line">349</span><br><span class="line">350</span><br><span class="line">351</span><br><span class="line">352</span><br><span class="line">353</span><br><span class="line">354</span><br><span class="line">355</span><br><span class="line">356</span><br><span class="line">357</span><br><span class="line">358</span><br><span class="line">359</span><br><span class="line">360</span><br><span class="line">361</span><br><span class="line">362</span><br><span class="line">363</span><br><span class="line">364</span><br><span class="line">365</span><br><span class="line">366</span><br><span class="line">367</span><br><span class="line">368</span><br><span class="line">369</span><br><span class="line">370</span><br><span class="line">371</span><br><span class="line">372</span><br><span class="line">373</span><br><span class="line">374</span><br><span class="line">375</span><br><span class="line">376</span><br><span class="line">377</span><br><span class="line">378</span><br><span class="line">379</span><br><span class="line">380</span><br><span class="line">381</span><br><span class="line">382</span><br><span class="line">383</span><br><span class="line">384</span><br><span class="line">385</span><br><span class="line">386</span><br><span class="line">387</span><br><span class="line">388</span><br><span class="line">389</span><br><span class="line">390</span><br><span class="line">391</span><br><span class="line">392</span><br><span class="line">393</span><br><span class="line">394</span><br><span class="line">395</span><br><span class="line">396</span><br><span class="line">397</span><br><span class="line">398</span><br><span class="line">399</span><br><span class="line">400</span><br><span class="line">401</span><br><span class="line">402</span><br><span class="line">403</span><br><span class="line">404</span><br><span class="line">405</span><br><span class="line">406</span><br><span class="line">407</span><br><span class="line">408</span><br><span class="line">409</span><br><span class="line">410</span><br><span class="line">411</span><br><span class="line">412</span><br><span class="line">413</span><br><span class="line">414</span><br><span class="line">415</span><br><span class="line">416</span><br><span class="line">417</span><br><span class="line">418</span><br><span class="line">419</span><br><span class="line">420</span><br><span class="line">421</span><br><span class="line">422</span><br><span class="line">423</span><br><span class="line">424</span><br><span class="line">425</span><br><span class="line">426</span><br><span class="line">427</span><br><span class="line">428</span><br><span class="line">429</span><br><span class="line">430</span><br><span class="line">431</span><br><span class="line">432</span><br><span class="line">433</span><br><span class="line">434</span><br><span class="line">435</span><br><span class="line">436</span><br><span class="line">437</span><br><span class="line">438</span><br><span class="line">439</span><br><span class="line">440</span><br><span class="line">441</span><br><span class="line">442</span><br><span class="line">443</span><br><span class="line">444</span><br><span class="line">445</span><br><span class="line">446</span><br><span class="line">447</span><br><span class="line">448</span><br><span class="line">449</span><br><span class="line">450</span><br><span class="line">451</span><br><span class="line">452</span><br><span class="line">453</span><br><span class="line">454</span><br><span class="line">455</span><br><span class="line">456</span><br><span class="line">457</span><br><span class="line">458</span><br><span class="line">459</span><br><span class="line">460</span><br><span class="line">461</span><br><span class="line">462</span><br><span class="line">463</span><br><span class="line">464</span><br><span class="line">465</span><br><span class="line">466</span><br><span class="line">467</span><br><span class="line">468</span><br><span class="line">469</span><br><span class="line">470</span><br><span class="line">471</span><br><span class="line">472</span><br><span class="line">473</span><br><span class="line">474</span><br><span class="line">475</span><br><span class="line">476</span><br><span class="line">477</span><br><span class="line">478</span><br><span class="line">479</span><br><span class="line">480</span><br><span class="line">481</span><br><span class="line">482</span><br><span class="line">483</span><br><span class="line">484</span><br><span class="line">485</span><br><span class="line">486</span><br><span class="line">487</span><br><span class="line">488</span><br><span class="line">489</span><br><span class="line">490</span><br><span class="line">491</span><br><span class="line">492</span><br><span class="line">493</span><br><span class="line">494</span><br><span class="line">495</span><br><span class="line">496</span><br><span class="line">497</span><br><span class="line">498</span><br><span class="line">499</span><br><span class="line">500</span><br><span class="line">501</span><br><span class="line">502</span><br><span class="line">503</span><br><span class="line">504</span><br><span class="line">505</span><br><span class="line">506</span><br><span class="line">507</span><br><span class="line">508</span><br><span class="line">509</span><br><span class="line">510</span><br><span class="line">511</span><br><span class="line">512</span><br><span class="line">513</span><br><span class="line">514</span><br><span class="line">515</span><br><span class="line">516</span><br><span class="line">517</span><br><span class="line">518</span><br><span class="line">519</span><br><span class="line">520</span><br><span class="line">521</span><br><span class="line">522</span><br><span class="line">523</span><br><span class="line">524</span><br><span class="line">525</span><br><span class="line">526</span><br><span class="line">527</span><br><span class="line">528</span><br><span class="line">529</span><br><span class="line">530</span><br><span class="line">531</span><br><span class="line">532</span><br><span class="line">533</span><br><span class="line">534</span><br><span class="line">535</span><br><span class="line">536</span><br><span class="line">537</span><br><span class="line">538</span><br><span class="line">539</span><br><span class="line">540</span><br><span class="line">541</span><br><span class="line">542</span><br><span class="line">543</span><br><span class="line">544</span><br><span class="line">545</span><br><span class="line">546</span><br><span class="line">547</span><br><span class="line">548</span><br><span class="line">549</span><br><span class="line">550</span><br><span class="line">551</span><br><span class="line">552</span><br><span class="line">553</span><br><span class="line">554</span><br><span class="line">555</span><br><span class="line">556</span><br><span class="line">557</span><br><span class="line">558</span><br><span class="line">559</span><br><span class="line">560</span><br><span class="line">561</span><br><span class="line">562</span><br><span class="line">563</span><br><span class="line">564</span><br><span class="line">565</span><br><span class="line">566</span><br><span class="line">567</span><br><span class="line">568</span><br><span class="line">569</span><br><span class="line">570</span><br><span class="line">571</span><br><span class="line">572</span><br><span class="line">573</span><br><span class="line">574</span><br><span class="line">575</span><br><span class="line">576</span><br><span class="line">577</span><br><span class="line">578</span><br><span class="line">579</span><br><span class="line">580</span><br><span class="line">581</span><br><span class="line">582</span><br><span class="line">583</span><br><span class="line">584</span><br><span class="line">585</span><br><span class="line">586</span><br><span class="line">587</span><br><span class="line">588</span><br><span class="line">589</span><br><span class="line">590</span><br><span class="line">591</span><br><span class="line">592</span><br><span class="line">593</span><br><span class="line">594</span><br><span class="line">595</span><br><span class="line">596</span><br><span class="line">597</span><br><span class="line">598</span><br><span class="line">599</span><br><span class="line">600</span><br><span class="line">601</span><br><span class="line">602</span><br><span class="line">603</span><br><span class="line">604</span><br><span class="line">605</span><br><span class="line">606</span><br><span class="line">607</span><br><span class="line">608</span><br><span class="line">609</span><br><span class="line">610</span><br><span class="line">611</span><br><span class="line">612</span><br><span class="line">613</span><br><span class="line">614</span><br><span class="line">615</span><br><span class="line">616</span><br><span class="line">617</span><br><span class="line">618</span><br><span class="line">619</span><br><span class="line">620</span><br><span class="line">621</span><br><span class="line">622</span><br><span class="line">623</span><br><span class="line">624</span><br><span class="line">625</span><br><span class="line">626</span><br><span class="line">627</span><br><span class="line">628</span><br><span class="line">629</span><br><span class="line">630</span><br><span class="line">631</span><br><span class="line">632</span><br><span class="line">633</span><br><span class="line">634</span><br><span class="line">635</span><br><span class="line">636</span><br><span class="line">637</span><br><span class="line">638</span><br><span class="line">639</span><br><span class="line">640</span><br><span class="line">641</span><br><span class="line">642</span><br><span class="line">643</span><br><span class="line">644</span><br><span class="line">645</span><br><span class="line">646</span><br><span class="line">647</span><br><span class="line">648</span><br><span class="line">649</span><br><span class="line">650</span><br><span class="line">651</span><br><span class="line">652</span><br><span class="line">653</span><br><span class="line">654</span><br><span class="line">655</span><br><span class="line">656</span><br></pre></td><td class="code"><pre><span class="line"><span class="meta">#<span class="meta-keyword">include</span><span class="meta-string">&lt;stdio.h&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="meta-keyword">include</span><span class="meta-string">&lt;ctype.h&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="meta-keyword">include</span><span class="meta-string">&lt;conio.h&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="meta-keyword">include</span><span class="meta-string">&lt;stdlib.h&gt;</span></span></span><br><span class="line"><span class="meta">#<span class="meta-keyword">include</span><span class="meta-string">&lt;string.h&gt;</span></span></span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">A</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">B</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">C</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">D</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">E</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">TESTparse</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">program</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">statement</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">statement_list</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">expression</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">expression_stat</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">declaration_stat</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">declaration_list</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">if_stat</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">for_stat</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">read_stat</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">write_stat</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">while_stat</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">compound_stat</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">term</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">factor</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">bool_expr</span><span class="params">()</span></span>;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">additive_expr</span><span class="params">()</span></span>;</span><br><span class="line"><span class="keyword">int</span> line;</span><br><span class="line"><span class="keyword">char</span> ch;</span><br><span class="line">FILE *fp;<span class="comment">//用于指向输入文件的指针</span></span><br><span class="line"><span class="keyword">extern</span> <span class="keyword">char</span> Scanout[<span class="number">300</span>];<span class="comment">//保存词法分析输出文件名</span></span><br><span class="line"><span class="keyword">char</span> token[<span class="number">20</span>], token1[<span class="number">40</span>];<span class="comment">//token保存单词符号，token1保存单词值</span></span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">TESTparse</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> ((fp = fopen(Scanout, <span class="string">"r"</span>)) == <span class="literal">NULL</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"\n Open %s error !\n"</span>, Scanout);</span><br><span class="line">        es = <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">printf</span>(<span class="string">"=========Result!=========\n\n"</span>);</span><br><span class="line"></span><br><span class="line">    <span class="keyword">if</span> (es == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        es = program();</span><br><span class="line">    &#125;</span><br><span class="line">    fclose(fp);</span><br><span class="line">    <span class="keyword">return</span> (es);</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">program</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"&#123;"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack  &#123;    \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    es = declaration_list();</span><br><span class="line">    <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    es = statement_list();</span><br><span class="line">    <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"&#125;"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack  &#125;    \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    ch = getc(fp);</span><br><span class="line">    <span class="keyword">while</span> (ch != EOF)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">if</span> (ch != <span class="string">' '</span>&amp;&amp;ch != <span class="string">'\n'</span>&amp;&amp;ch != <span class="string">'\t'</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Programma error!!   \n"</span>, line);</span><br><span class="line">            <span class="keyword">return</span> (es = <span class="number">1</span>);</span><br><span class="line">        &#125;</span><br><span class="line">        ch = getc(fp);</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">return</span> (es);</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">declaration_list</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token1, <span class="string">"int"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        es = A();</span><br><span class="line">        <span class="keyword">return</span> es;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack int \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">A</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token1, <span class="string">"int"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        es = declaration_stat();</span><br><span class="line">        <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        es = A();</span><br><span class="line">        <span class="keyword">return</span> (es);</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span></span><br><span class="line">        (</span><br><span class="line">        <span class="built_in">strcmp</span>(token1, <span class="string">"if"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token1, <span class="string">"while"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token1, <span class="string">"for"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token1, <span class="string">"read"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token1, <span class="string">"write"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token1, <span class="string">"&#123;"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token1, <span class="string">";"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token1, <span class="string">"ID"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token1, <span class="string">"("</span>) == <span class="number">0</span>||</span><br><span class="line">        <span class="built_in">strcmp</span>(token1, <span class="string">"NUM"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token1, <span class="string">"&#125;"</span>) == <span class="number">0</span></span><br><span class="line">        )</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack int||if||while||for||read||write||&#123;||;||ID||(||NUM||&#125; \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span>  <span class="title">declaration_stat</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"int"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   int    \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"ID"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   ID    \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">";"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   ;   \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span>  <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">statement_list</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"if"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"while"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"for"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"read"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"write"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"ID"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"&#123;"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">";"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"NUM"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"("</span>) == <span class="number">0</span> </span><br><span class="line">        )</span><br><span class="line">    &#123;</span><br><span class="line">        es = B();</span><br><span class="line">        <span class="keyword">return</span> es;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack  if||while||for||read||write||&#123;||;||ID||NUM||(   \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">B</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"if"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"while"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"for"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"read"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"write"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"ID"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"&#123;"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">";"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"NUM"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"("</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        es = statement();</span><br><span class="line">        <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        es = B();</span><br><span class="line">        <span class="keyword">return</span> (es);</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"&#125;"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack  if||while||for||read||write||&#123;||;||ID||NUM||( ||&#125;  \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">statement</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (es == <span class="number">0</span> &amp;&amp; <span class="built_in">strcmp</span>(token, <span class="string">"if"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        es = if_stat();</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span> (es == <span class="number">0</span> &amp;&amp; <span class="built_in">strcmp</span>(token, <span class="string">"while"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        es = while_stat();</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span> (es == <span class="number">0</span> &amp;&amp; <span class="built_in">strcmp</span>(token, <span class="string">"for"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        es = for_stat();</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span> (es == <span class="number">0</span> &amp;&amp; <span class="built_in">strcmp</span>(token, <span class="string">"read"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        es = read_stat();</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span> (es == <span class="number">0</span> &amp;&amp; <span class="built_in">strcmp</span>(token, <span class="string">"write"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        es = write_stat();</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span> (es == <span class="number">0</span> &amp;&amp; <span class="built_in">strcmp</span>(token, <span class="string">"&#123;"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        es = compound_stat();                       </span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span> (es == <span class="number">0</span> &amp;&amp; <span class="built_in">strcmp</span>(token, <span class="string">"ID"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"NUM"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"("</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">";"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        es = expression_stat();</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack  if||while||for||read||write||&#123;||;||ID||NUM||(   \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">return</span> (es);</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">if_stat</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"("</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack  ( \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    es = expression();</span><br><span class="line">    <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">")"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack  ) \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    es = statement();</span><br><span class="line">    <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"else"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        es = statement();</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">return</span> (es);</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">while_stat</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"("</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   (   \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    es = expression();</span><br><span class="line">    <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">")"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   )   \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    es = statement();</span><br><span class="line">    <span class="keyword">return</span> (es);</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">for_stat</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"("</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   (   \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    es = expression();</span><br><span class="line">    <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">";"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   ;   \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    es = expression();</span><br><span class="line">    <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">";"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   ;  \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    es = expression();</span><br><span class="line">    <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">")"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   )  \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    es = statement();</span><br><span class="line">    <span class="keyword">return</span> (es);</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">write_stat</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    es = expression();</span><br><span class="line">    <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">";"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   ;  \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"></span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">read_stat</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"ID"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   ID  \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">";"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   ;   \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">compound_stat</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    es = statement_list();</span><br><span class="line">    <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"&#125;"</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">    <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">expression_stat</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">";"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"ID"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"NUM"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"("</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        es = expression();</span><br><span class="line">        <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">";"</span>) == <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">            <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">else</span></span><br><span class="line">        &#123;</span><br><span class="line">            <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   ;   \n"</span>, line);</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   ;||ID||NUM||(   \n"</span>, line);</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">expression</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>, fileadd;</span><br><span class="line">    <span class="keyword">char</span> token2[<span class="number">20</span>], token3[<span class="number">40</span>];</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"ID"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        fileadd = ftell(fp);<span class="comment">//记住当前文件位置</span></span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token2, &amp;token3, &amp;line);</span><br><span class="line"></span><br><span class="line">        <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token2, <span class="string">"="</span>) == <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">            es = bool_expr();</span><br><span class="line">            <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">            &#123;</span><br><span class="line">                <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">            &#125;</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">else</span></span><br><span class="line">        &#123;</span><br><span class="line">            fseek(fp, fileadd, <span class="number">0</span>);<span class="comment">//若非‘=’，则文件指针回到'='前的标识符</span></span><br><span class="line">            es = bool_expr();</span><br><span class="line">            <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">            &#123;</span><br><span class="line">                <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">            &#125;</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        es = bool_expr();</span><br><span class="line">        <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">bool_expr</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"ID"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"NUM"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"("</span>))</span><br><span class="line">    &#123;</span><br><span class="line">        es = additive_expr();</span><br><span class="line">        <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        es = C();</span><br><span class="line">        <span class="keyword">return</span> (es);</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack  ID||NUM||(    \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">C</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"&gt;"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"&gt;="</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"&lt;"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"&lt;="</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"=="</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"!="</span>) == <span class="number">0</span></span><br><span class="line">        )</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        es = additive_expr();</span><br><span class="line">        <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">";"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">")"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack )||&gt;||&lt;||&gt;=||&lt;==||==||!=||;    \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">additive_expr</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"ID"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"NUM"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"("</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        es = term();</span><br><span class="line">        <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        es = D();</span><br><span class="line">        <span class="keyword">return</span> (es);</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack  ID||NUM||(   \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">D</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"+"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"-"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        es = term();</span><br><span class="line">        <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        es = D();</span><br><span class="line">        <span class="keyword">return</span> (es);</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span></span><br><span class="line">        (</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">";"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">")"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"&gt;"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"&gt;="</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"&lt;"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"&lt;="</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"=="</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"!="</span>) == <span class="number">0</span></span><br><span class="line">        )</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   +||-||;||)||&lt;||&gt;||&lt;=||&gt;=||==||!=    \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line"></span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">term</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"ID"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"NUM"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"("</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        es = factor();</span><br><span class="line">        <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        es = E();</span><br><span class="line">        <span class="keyword">return</span> (es);</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack  ID||NUM||(   \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">E</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"*"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"/"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        es = factor();</span><br><span class="line">        <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        es = E();</span><br><span class="line">        <span class="keyword">return</span> (es);</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span></span><br><span class="line">        (</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">";"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">")"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"+"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"-"</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"&gt;"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"&gt;="</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"&lt;"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"&lt;="</span>) == <span class="number">0</span> ||</span><br><span class="line">        <span class="built_in">strcmp</span>(token, <span class="string">"=="</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"!="</span>) == <span class="number">0</span></span><br><span class="line">        )</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   Lack   *||/||;||)||&gt;||&lt;||==||!=||&gt;=||&lt;=  \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br><span class="line"><span class="function"><span class="keyword">int</span> <span class="title">factor</span><span class="params">()</span></span><br><span class="line"></span>&#123;</span><br><span class="line">    <span class="keyword">int</span> es = <span class="number">0</span>;</span><br><span class="line">    <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"("</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        es = expression();</span><br><span class="line">        <span class="keyword">if</span> (es &gt; <span class="number">0</span>)</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">")"</span>))</span><br><span class="line">        &#123;</span><br><span class="line">            <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   )   \n"</span>, line);</span><br><span class="line">            <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">        &#125;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span> <span class="keyword">if</span> (<span class="built_in">strcmp</span>(token, <span class="string">"ID"</span>) == <span class="number">0</span> || <span class="built_in">strcmp</span>(token, <span class="string">"NUM"</span>) == <span class="number">0</span>)</span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">fscanf</span>(fp, <span class="string">"%s%s%d\n"</span>, &amp;token, &amp;token1, &amp;line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">0</span>;</span><br><span class="line">    &#125;</span><br><span class="line">    <span class="keyword">else</span></span><br><span class="line">    &#123;</span><br><span class="line">        <span class="built_in">printf</span>(<span class="string">"ERROR: Line %d   ( || ID || NUM    \n"</span>, line);</span><br><span class="line">        <span class="keyword">return</span> <span class="number">1</span>;</span><br><span class="line">    &#125;</span><br><span class="line">&#125;</span><br></pre></td></tr></table></figure>

      
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